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The genus Usnea (Parmeliaceae, Ascomycota) in the southern Philippines: a first phylogenetic approach

Published online by Cambridge University Press:  28 December 2023

Alice Gerlach Open the ORCID record for Alice Gerlach [Opens in a new window] ,
Philippe Clerc Open the ORCID record for Philippe Clerc [Opens in a new window] ,
Robert Lücking Open the ORCID record for Robert Lücking [Opens in a new window] ,
Bibiana Moncada ,
Joevina Caballero Nobleza ,
Yoshihito Ohmura Open the ORCID record for Yoshihito Ohmura [Opens in a new window]  and
Manuela Dal Forno Open the ORCID record for Manuela Dal Forno [Opens in a new window]
Alice Gerlach*
Affiliation:
Fort Worth Botanic Garden, Botanical Research Institute of Texas, USA
Philippe Clerc
Affiliation:
Conservatoire et Jardin botaniques de la ville de Genève, CH-1292 Chambésy/GE, Switzerland
Robert Lücking
Affiliation:
Botanischer Garten und Botanisches Museum Berlin, Freie Universität Berlin, 14195 Berlin, Germany
Bibiana Moncada
Affiliation:
Botanischer Garten und Botanisches Museum Berlin, Freie Universität Berlin, 14195 Berlin, Germany Universidad Distrital Francisco José de Caldas, Bogotá, Colombia
Joevina Caballero Nobleza
Affiliation:
Center for Biodiversity Research and Extension in Mindanao, Maramag, Bukidnon, Philippines
Yoshihito Ohmura
Affiliation:
National Museum of Nature and Science, Tsukuba, Ibaraki, 305-0005, Japan
Manuela Dal Forno
Affiliation:
Fort Worth Botanic Garden, Botanical Research Institute of Texas, USA Research Associate, Smithsonian Institution, National Museum of Natural History, Washington, DC 20560, USA
*
Corresponding author: Alice Gerlach; Email: alice_gerlach@yahoo.com.br
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Abstract

A first integrative survey of the genus Usnea in the southern Philippines, taking into account morphological, anatomical, chemical and molecular characters, resulted in the recognition of 20 taxa, including three species new to science: Usnea angulata Ach., U. baileyi (Stirt.) Zahlbr., U. bismolliuscula Zahlbr., U. brasiliensis (Zahlbr.) Motyka, U. confusa Asah., U. croceorubescens Stirt., U. dasaea Stirt., U. himalayana C. Bab., U. krogiana P. Clerc, U. longissima Ach., U. nidifica Taylor, U. norsticornuta A. Gerlach & P. Clerc sp. nov. (characterized by a moderately thick cortex and by the presence of norstictic acid), U. paleograndisora A. Gerlach & P. Clerc sp. nov. (characterized by an orange subcortical pigmentation in the medulla, with enlarging soralia and a moderately thick and shiny cortex), U. pectinata Taylor, U. pygmoidea (Asahina) Y. Ohmura, U. rubicunda Stirt., U. rubrotincta (Stirt.) Zahlbr., U. spinulifera (Vain.) Motyka, U. subscabrosa Motyka and U. yoshihitoi P. Clerc & A. Gerlach sp. nov. (characterized by a lax medulla with non-conglutinated hyphae). Usnea krogiana is a new record for Asia; Usnea brasiliensis, Usnea confusa and U. croceorubescens are new records for the Philippines. This is the first phylogenetic study to include DNA sequences of Usnea from the Philippines. Molecular data from the ITS rDNA (76 newly generated sequences) are presented for most taxa except for U. himalayana, U. longissima and U. subscabrosa. At least six further taxa remain unidentified, awaiting the collection of additional specimens.

Keywords

anatomybiodiversitylichenMindanaomorphologyNegrosthin-layer chromatography
Type
Standard Paper
Information
The Lichenologist , Volume 55 , Issue 6 , November 2023 , pp. 451 - 480
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Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of the British Lichen Society

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